Nara, Japan

Motohiro Yamahara

This inventor holds 42 USPTO granted patents and 7 published patent applications and 1 EPO patent, primarily in Liquid Crystal Displays. Top assignees: Sharp Kabushiki Kaisha Corporation, Sumitomo Chemical Company, Limited, Sharp Kabushiki. Active years: 1996-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Motohiro Yamahara. Retrieved from https://idiyas.com/inventor/motohiro-yamahara

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 42 

% Patents Active = 71.4


Average Co-Inventor Count = 2.2

ph-index = 12

Forward Citations = 447(Granted Patents)


Location History:

  • Osaka, JP (1996 - 2007)
  • Nara, JP (2005 - 2013)

Company Filing History:


Years Active: 1996-2013

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Areas of Expertise:
Liquid Crystal Display
Optical Film
Transistor
Electronic Device
Phase Difference Layers
Antiglare Layer
Carrier Transport Property
Self-Luminescence Display
Polymer Material
Viewing Angle Improvement
Dendrimer
Fluorescent Tubes
42 patents (USPTO):Explore Patents

Title: Innovations of Motohiro Yamahara: A Visionary in Optical Technology

Introduction: Motohiro Yamahara, based in Nara, Japan, is an accomplished inventor with an impressive portfolio of 42 patents. His work primarily focuses on advancements in optical technologies, showcasing his significant contributions to the field of liquid crystal displays and related devices.

Latest Patents: Among his latest innovations, Yamahara has developed an optical path unit and a liquid crystal display device that excels in luminance in the front direction. His invention features a sophisticated arrangement of components, including a backlight unit, two prism films, a first polarizing plate, a liquid crystal cell with a liquid crystal layer situated between a pair of substrates, and a second polarizing plate. The prism films are designed with linear prisms positioned in parallel on a light incident surface, demonstrating a polygonal and tapered cross section, with an endmost vertex angle ranging from 90° to 110°. Furthermore, the polarizing plates are configured in a crossed Nicols relationship, enhancing the efficiency of light transmission through the device.

In addition, Yamahara has worked on a birefringent film, which combines a compound featuring a proton-accepting group with a proton-donating group, linked through intermolecular hydrogen bonding. This innovation further exemplifies his expertise in material science and optical engineering.

Career Highlights: Yamahara's distinguished career includes significant tenures at renowned companies such as Sharp Corporation and Sumitomo Chemical Company, Limited. His efforts have led to groundbreaking advancements that have had lasting impacts on display technologies and optical materials.

Collaborations: Throughout his career, Yamahara has collaborated with esteemed colleagues including Shigeaki Mizushima and Nobuaki Yamada. These partnerships have fostered innovative developments, enriching the quality and scope of his inventions.

Conclusion: Motohiro Yamahara stands out as a pivotal figure in the realm of optical technology. With a wealth of patents to his name and a commitment to innovation, his contributions continue to influence the industry and pave the way for future advancements in liquid crystal display technology and beyond. His ongoing work serves as an inspiration for aspiring inventors and established experts alike.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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